Home / 1,268,782,575.90-1,903,131,985.71-521,772,495.90

Finding the Fourth Proportional to 1,268,782,575.90, 1,903,131,985.71 and 521,772,495.90

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Solution

The fourth proportional to 1,268,782,575.90, 1,903,131,985.71 and 521,772,495.90 is: 782,641,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,782,575.90 : 1,903,131,985.71 = 521,772,495.90 : x
  2. Step 2: Convert to fraction form
    1,268,782,575.90/1,903,131,985.71 = 521,772,495.90/x
  3. Step 3: Cross multiply
    1,268,782,575.90x = 1,903,131,985.71 × 521,772,495.90
  4. Step 4: Simplify right side
    1,268,782,575.90x = 993,001,926,211,029,760
  5. Step 5: Solve for x
    x = 993,001,926,211,029,760/1,268,782,575.90
  6. Step 6: Final answer
    x = 782,641,521.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.